D-CHIRO-INOSITOL
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What Is D-CHIRO-INOSITOL?
D-chiro-inositol (DCI) is a naturally occurring stereoisomer of inositol that functions as a secondary messenger in insulin signaling pathways. It works by improving insulin sensitivity and glucose metabolism, primarily through replenishment of insulin-mediating phosphoglycans. DCI is most commonly used to manage polycystic ovary syndrome (PCOS), where it helps restore ovulatory function, reduce androgen levels, and improve metabolic parameters.
D-CHIRO-INOSITOL Research & Studies
01 Ovulatory and Metabolic Effects of d-Chiro-Inositol in the Polycystic Ovary Syndrome ▸
In 44 obese women with PCOS, 1200mg daily of DCI significantly improved insulin sensitivity, reduced free testosterone by 54%, lowered blood pressure and triglycerides, and restored ovulation in 86% of women compared to 27% in placebo group.
View Study (PubMed)02 Comparative efficacy of combined myo-inositol and D-chiro inositol versus metformin across PCOS Phenotypes ▸
A 12-week trial showed that MI+DCI combination (40:1 ratio) significantly improved insulin sensitivity, SHBG levels, ovarian volume, menstrual regularity, BMI, quality of life, and stress scores in PCOS patients, with comparable efficacy to metformin.
View Study (PubMed)03 D-Chiro-inositol and its significance in polycystic ovary syndrome: a systematic review ▸
This systematic review consolidates evidence showing DCI's role in improving insulin resistance, hormonal profiles, and ovulatory function in PCOS patients through its action as an insulin mediator.
View Study (PubMed)04 Efficacy of myo-inositol and d-chiro-inositol combination on menstrual cycle regulation and improving insulin resistance in young women with polycystic ovary syndrome ▸
Randomized controlled trial demonstrated that MI+DCI combination effectively regulated menstrual cycles and improved insulin resistance in young women with PCOS.
View Study (PubMed)D-CHIRO-INOSITOL User Reviews & Experiences
*Based on large scale analysis of publicly available user experiences
Users with PCOS report significant improvements in menstrual regularity, ovulation, insulin sensitivity, and hormonal balance. Most users recommend it as a first-line treatment for PCOS symptoms, particularly when combined with myo-inositol at the 40:1 ratio.
D-CHIRO-INOSITOL Benefits, Dosage & Side Effects
- Improved Ovulation: Restores regular ovulatory cycles in majority of PCOS patients, with some studies showing 86% ovulation rate versus 27% in placebo
- Hormonal Balance: Significantly reduces free testosterone levels (approximately 50% reduction) and improves SHBG levels, leading to reduced androgenic symptoms
- Metabolic Improvement: Decreases insulin resistance (HOMA-IR), reduces triglycerides, lowers blood pressure by approximately 4mmHg, and supports healthy weight management
- Quality of Life: Reduces perceived stress scores and improves overall quality of life metrics in women with PCOS
- PCOS Management: Highly effective for managing PCOS symptoms, with comparable or superior results to metformin in some studies, particularly for phenotypes C and D
- Insulin Sensitivity: Produces dramatic improvements in insulin action, with plasma insulin curves decreasing by over 60% in clinical trials
- Phenotype-Specific Response: May be particularly effective for certain PCOS phenotypes, especially those without severe metabolic dysfunction
- Combination Therapy: Works best when combined with myo-inositol at 40:1 ratio (MI:DCI), providing synergistic benefits for both metabolic and reproductive outcomes
- Standard Dose: Most clinical trials used 1200mg daily of DCI alone, showing significant therapeutic effects at this dosage
- Combination Ratio: When combined with myo-inositol, optimal ratio is 40:1 (MI:DCI), which mirrors the physiological ratio in human tissues
- Duration: Treatment periods of 6-12 weeks show measurable improvements, with continued benefits observed with ongoing supplementation
- Split Dosing: Some users report better tolerance and efficacy when splitting daily dose into two administrations
- Generally Well-Tolerated: Clinical trials report minimal adverse effects, with most patients completing full treatment courses without issues
- Gastrointestinal Symptoms: Some users may experience mild digestive upset, particularly when initiating therapy or at higher doses
- Ovarian Response: In rare cases, excessive DCI supplementation may negatively impact oocyte quality; maintaining proper MI:DCI ratio is important
- Hypoglycemia Risk: Improved insulin sensitivity may require adjustment of diabetic medications to prevent low blood sugar in susceptible individuals
- Widely Available: DCI is readily available as a dietary supplement both standalone and in combination formulas with myo-inositol
- Quality Considerations: 40:1 MI:DCI ratio products are specifically formulated for PCOS and are preferred over standalone DCI for most users
- Prescription Status: Available over-the-counter as a nutritional supplement in most countries, though some practitioners may recommend specific pharmaceutical-grade formulations
Related Compounds
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